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- Description Specifications SONOFF 4CHR3 & 4CHPROR3 are 4-gang Wi-Fi Smart Switches designed to bring smart control to your home. Each switch features 4 gangs for controlling lights and appliances in different areas of your home simultaneously. The key difference between the two is that 4CHPROR3 includes an additional RF control function for using the RM433 remote controller to operate connected devices. Both 4CHR3 and 4CHPROR3 offer 3 working modes - self-locking, interlock, and inching mode. These modes can be set via the eWeLink APP, making operation easier compared to previous models. With these modes, you can control devices separately, trigger one device at a time, or set devices to turn off automatically after a specified time. Key features include: - Remote control via the APP - 3 working modes for versatile control - Scheduling for automatic device operation - Smart scenes customization to trigger other devices - Sharing control permission with others - Real-time device status monitoring - Power on state to maintain device settings after power restoration Enhance your smart home experience with SONOFF 4CHR3 & 4CHPROR3, compatible with Alexa and Google Home for voice control. Voltage Range: 100-240V AC 50/60Hz Max. Load: 10A/2200W/Gang 16A/3500W/Total Wireless Frequency: WiFi 2.4GHz Wireless Standard: IEEE802.11 b/g/n 2.4GHz(2400M-2483.5M) Security Mechanism: WPA/WPA2 Enclosure Material: PC V0 Gang: 4 Dimension: 145*90*34 (mm) Operating Temperature(recommended): -10ºC-40ºC(14°F-104°F) Operating Humidity: 5%-95%RH, Non-condensing
